Abstract

RFC 6154 created an IMAP special-use LIST extension and defined an
initial set of attributes. This document defines a new attribute,
"\Important", and establishes a new IANA registry for IMAP folder
attributes, which include the attributes defined in RFCs 5258, 3501,
and 6154. This document also defines a new IMAP keyword,
"$Important", and registers it in the registry defined in RFC 5788.